nilfs_palloc..._entry_block(9)

📦 version 7.3.1, in nixpkgs unstable

✨ nilfs_palloc_get_entry_block 💅

okay so bestie, this is a page straight out of the Kernel API Manual — the nilfs_palloc..._entry_block(9) one, yes the name is a whole mouthful, we love an abbreviated title era 🎀. It's a kernel function out of ./fs/nilfs2, and honestly? She's giving "small helper, big responsibilities."

🌸 NAME 🌸

nilfs_palloc_get_entry_block — grab the buffer head of an entry block. that's it. that's the whole vibe. she fetches, you receive 🫶

⭐ SYNOPSIS ⭐

int nilfs_palloc_get_entry_block (struct inode *inode , __u64 nr , int
       create , struct buffer_head **bhp );

like. look at her. four params, one int coming back. iconic behavior, no notes 💅

🦋 ARGUMENTS 🦋

  • inode — the inode of the metadata file that's using this allocator. she's the main character of this whole operation ngl 👑
  • nr — the serial number of the entry (think: inode number). the little ID that tells you which entry we're talking about fr fr
  • create — the create flag. yeah it's just called that. do with that what you will ✨
  • bhp — a pointer to store the resultant buffer head in. so like, you hand her an address and she'll drop the buffer head there for you 🍓

💜 RETURN 💜

0 on success, or a negative error code on failure. so basically: zero means slay, negative means something went sideways 😭

🔥 SEE ALSO 🔥

Kernel file ./fs/nilfs2/alloc.c, plus the entire extended friend group — no cap, this is a long list, and every single one of them is here:

and that's the whole page bestie, we ate and left zero crumbs 🌈💖 signing off from ./fs/nilfs2, dated October 2026, brought to you by the Kernel API Manual — same title, nilfs_palloc..._entry_block(9), still a mouthful, still iconic. mwah 💋🎀

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